Optimizing our database cluster and the way information is stored, to speed up API requests. During the next hour some of your resources may not show up in dashboard. They are not gone or inaccessible, it's a graphical glitch in dashboard. Stored information will synchronize soon, allowing your servers to show up again.
Note that this does not affect the API which is still accessible and still capable of showing all of your servers, despite some non essential information missing. If you have further questions or need assistance, please contact support.